Week -2

1.ans

Door bell:

the door bell is a device which consists of both machinical and electrical components to construct the door bell model in simulink we used the following components i.e pulse generator, simulink to ps converter,electrical referance,mechanical referance solonoid, ideal transaltional motion sensor, solver configuration, and scopes.

In the above model we use a solonoid to convert the electrical energy in to the mechanical energy after the completion of connections when ever the switch is closed the electromagnet receives electrical power from the battery and pulls the metal arm to hit the bell and sound will be produed. when the switch is closed for 2 seconds and then released the physical movements were observed in the below output figure.

2 ans

thermistor:

A thermistor is a type of resistor whose resistance is strongly dependent on temperature. in the thermistor as per the given condition we are using the following components i.e repeating sequence stair, controlled temperature source, solver configuration, thermister, voltage sensor, electrical references, battery, switch, scopes, and displays.

In the above model we use a thermistor to sence the temperature according to our conditions the result of the thermistor is shown in the observed in the following figures.